1.CHECK DTC PRIORITY
If DTC P044A is displayed with DTC P06B0, first perform trouble diagnosis for DTC P06B0.Is applicable DTC detected?
.
2.CHECK EGR VOLUME CONTROL VALVE POSITION SENSOR POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect EGR volume control valve harness connector.
- Turn ignition switch ON.
- Check voltage between EGR volume control valve harness connector and ground.
+ | − | Voltage (Approx.) |
EGR volume control valve |
Connector | Terminal |
F81 | 3 | Ground | 5 V |
Is the inspection result normal?
. Perform the trouble diagnosis for power supply circuit.
3.CHECK EGR VOLUME CONTROL VALVE POSITION SENSOR GROUND CIRCUIT
4.CHECK EGR VOLUME CONTROL VALVE POSITION SENSOR INPUT SIGNAL CIRCUIT
5.CHECK EGR VOLUME CONTROL VALVE